duandan5471
duandan5471
2019-05-02 20:44
浏览 507

Golang将字符串打印为字节数组

What's the fmt code for printing a string as an array of bytes?

If I have a marshaled json object, I can print bytes like so:

type Fakejs struct {
    Fake string `json:"fake"`
}

fjs := Fakejs {Fake:"abc"}
mjs, err := json.Marshal(fjs)
fmt.Println(mjs)

Produces

[123 34 102 97 107 101 34 58 34 97 98 99 34 125]

Which is what I want. However, with a regular string, I try this:

mystr := "{\"fake\":\"abc\"}"
fmt.Printf("mystr:\t %x 
", []byte(mystr))

And this produces:

7b2266616b65223a22616263227d

Which is not what I want. What is the "%x"-like format code that will printf the string as an array of bytes.

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1条回答 默认 最新

  • dqcd84732
    dqcd84732 2019-05-02 23:29
    已采纳

    https://play.golang.org/p/eQcZm57k1C1

    package main
    
    import (
        "fmt"
    )
    
    func main() {
        mystr := "{\"fake\":\"abc\"}"
        fmt.Printf("mystr:\t %v 
    ", []byte(mystr))
    }
    

    prints

    mystr:   [123 34 102 97 107 101 34 58 34 97 98 99 34 125] 
    
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